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Graduate School of Science and Engineering
Mechanical Engineering

Advanced Materials Structural Engineering Laboratory

Join us with ambition to study novel and advanced materials or structures for ecological bright future.


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Kazuya OKUBO

Telephone : +81-774-65-6444

Office : YM-224
Database of Researchers
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Kiyotaka OBUNAI
[Associate Professor]

Telephone : +81-774-65-6972

Office : YM-223
Database of Researchers

Research Topics

  • Fatigue mechanisms and new systems for high durable and ecological polymer composites.
  • Crack growth and interactions mechanisms in mechanical structure.
  • Development of advanced composite materials with high performances and properties for industrial applications.
  • Power transmitting mechanisms for CVT (Continuous Variable Transmissions) using metal and conventional V belts.

Research Contents

We believe, our laboratory is ahead in some branches of technology for developing new ecological polymer composites, high durable carbon fiber composites, novel structural system of CVT transmission with superior property and other effective concept for mechanical designs. Relating to our studies, at least ten papers are published annually in not only major domestic journals but also in a number of international journals.
Our laboratory has some collaboration with several companies to conduct specific researches related to the above subjects. We have also special subjects supported by the National Science Fund provided by the Ministry of Education, Culture, Sports, Science and Technology, Japan. Co-sponsorships with industry are welcomed as long as the results will be published in the future. International students are also welcomed. Do not hesitate to contact us.

Details of research subjects are:

  • Study on Improvement Method of Strength for Eco-composites using Natural Bamboo Fiber
  • Surface Treatment Method of Bamboo Shoot Skin Fiber for BFRP
  • Development of Advanced Carbon Fiber Composites using Micro Fibrillated Cellulose.
  • Development of Bamboo Fiber Paper with High Specific Strength and Stiffness
  • Novel Approach in Evaluation of Fatigue Damage Progression of Woven Fabric Composites under Cyclic Loading.
  • Development of Novel Carbon/Carbon Composite (Carbon Fiber Reinforced Carbon Composite) with Added Fine Carbon Fiber
  • Study on Assist Device with Advanced Structure in Standing up for Welfare.
  • Development of Low-cost Car-Clutches Using Short Glass Fiber Reinforced Phenol Composites.
  • Study on Power Transmitting Mechanisms of Metal V-belt type CVT
    - Change of Pitch Line -
  • Improvement of Power Transmitting Efficiency of Metal V-belt type CVT.
  • Estimation of power Loss and Prediction of Shifting Gradient Considering Elastic Deformation of Blocks of Metal V-belt type CVT
  • Noise Generation Mechanism of One-piece Type Brake Disc used in Motorcycle after Alternation of Braking and its Release.
  • Development of Mechanical New Power System for Vehicle Driven by Plural Motors Connected in Series with CVT
  • Crack Propagation due to Cyclic Impact Loading and Local Deformation in Rubber Conveyor Belt for Civil Engineering.


  • Mechanics of Materials
  • Structural Engineering
  • Linear and Hyper Elastic Mechanics
  • Strength and Fracture Mechanics of Composites Materials
  • Crack and Damage Mechanics
  • Mechanics of Power Transmission Systems
  • Continuous Variable Transmission (CVT)
  • Finite Element Method (FEM)